108402085 has 24 divisors (see below), whose sum is σ = 143783640. Its totient is φ = 78397440.

The previous prime is 108402079. The next prime is 108402101. The reversal of 108402085 is 580204801.

It can be written as a sum of positive squares in 4 ways, for example, as 1258884 + 107143201 = 1122^2 + 10351^2 .

It is not a de Polignac number, because 108402085 - 2⁵ = 108402053 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140581 + ... + 141349.

It is an arithmetic number, because the mean of its divisors is an integer number (5990985).

Almost surely, 2^108402085 is an apocalyptic number.

It is an amenable number.

108402085 is a deficient number, since it is larger than the sum of its proper divisors (35381555).

108402085 is a wasteful number, since it uses less digits than its factorization.

108402085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 108402085 is about 10411.6321967307. The cubic root of 108402085 is about 476.8105745636.

Adding to 108402085 its reverse (580204801), we get a palindrome (688606886).

The spelling of 108402085 in words is "one hundred eight million, four hundred two thousand, eighty-five".